Differential and partial cross sections of elastic and inelastic positronium-helium-atom scattering

Details Differential and partial cross sections of elastic and inelastic positronium-helium-atom scattering Differential and partial cross sections of elastic and inelastic positronium-helium-atom scattering

2000-12-17

arxiv.org/abs/physics/0012037v1

Phys. Rev. A 62 (2000) 062708 (1-5)

Physics

Atomic Physics

8 pages, 4 ps figures

Scientific paper

10.1103/PhysRevA.62.062708

Scattering of positronium (Ps) by helium atom has been investigated in a three-Ps-state coupled-channel model including Ps(1s,2s,2p) states using a recently proposed time-reversal-symmetric regularized electron-exchange model potential. Specifically, we report results of differential cross sections for elastic scattering and target-elastic Ps excitations. We also present results for total and different partial cross sections and compare them with experiment and other calculations.

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